LTC4054LES5-4.2#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LTC4054LES5-4.2#TRPBF

Manufacturer

Analog Devices

Introduction

Linear battery charger for single-cell lithium-ion batteries in a TSOT-23 package

Product Features and Performance

Efficient charging of single-cell lithium-ion batteries

Automatic recharge feature

Thermal regulation to optimize charge rate under all conditions

Undervoltage lockout

Soft-start limits inrush current

Product Advantages

Compact SOT-23-5 package suitable for space-constrained applications

Integrated power and thermal management for safe operation

Charging current is programmable with a single external resistor

Charger requires minimal external components, simplifying design

Key Technical Parameters

Battery Chemistry: Lithium Ion

Number of Cells: 1

Constant Charge Current: Programmable

Charge Current - Max: 150mA

Battery Pack Voltage: 4.2V

Voltage - Supply (Max): 6.5V

Operating Temperature Range: -40°C to 85°C

Mounting Type: Surface Mount

Quality and Safety Features

Thermal feedback regulates charge current to limit the die temperature during high power operation or high ambient temperature conditions

Integrated thermal regulation to prevent overheating

Compatibility

Designed for single-cell lithium-ion batteries

Compatible with surface mount technology for PCB assembly

Application Areas

Portable electronics

Wearable devices

Small consumer electronics products requiring battery charging

Product Lifecycle

Active product status, not currently nearing discontinuation

Long-term availability and support can be anticipated

Several Key Reasons to Choose This Product

Optimal choice for single-cell lithium-ion battery charging applications requiring compact size

Low component count enhances reliability and simplifies design integration

Thermal protection features ensure stability and safety

Customizable charging profile can be achieved through a single external component

Well-suited for automated, high-volume production due to Tape & Reel packaging

Broad operating temperature range suits a variety of operating environments